Ticks are parasites that often attach to mammals, birds, and reptiles to suck blood. Not only do they cause harm to their hosts, they can also spread a variety of diseases, such as Lyme disease and cat scratch fever. Although ticks play an important role in the ecosystem, their excessive numbers can...
The oldest insect fossil is a wingless springtail insect found in the middle Devonian strata 350 million years ago. The body of this insect has been clearly divided into three parts: head, thorax and abdomen. The emergence of the thorax as the center of movement clearly represents the birth o...